Precision CoolingFor Business-Critical Continuity™Liebert® Xtreme Density™System Design Manual
System Description21.2 Generic Piping LayoutsLiebert XD systems are available in two configurations—differentiated essentially by the method of heat r
Specifications and Model Number Nomenclature92Figure 83 Liebert XDP model number nomenclatureRPumpRedundancyXD P 160 – *PumpingunitRevisionlevelModel
Specifications and Model Number Nomenclature93Notes
Specifications and Model Number Nomenclature94
Ensuring The High AvailabilityOf Mission-Critical Data And Applications.Emerson Network Power, the global leader in enabling business-criticalcontinui
System Description31.3 Liebert XDA—Air Flow EnhancerThe Liebert XDA is a fan unit that boosts the airflow through densely populated enclosures, removi
System Description41.4 Liebert XDCF—Liebert XD CoolFrameThe Liebert XDCF is a self-contained module designed to cool Egenera’s BladeFrame EX cabinets
System Description51.5 Liebert XDH—Horizontal Cooling ModuleThe Liebert XDH is designed for placement within a row of computer cabinets in the data ce
System Description61.6 Liebert XDO—Overhead Cooling ModuleThe Liebert XDO is an overhead cooling system designed for installation above heat-dissipati
System Description71.7 Liebert XDR—Rear Cooling ModuleThe Liebert XDR is a cooling system for high-density heat loads that mounts on the rear of a 24
System Description81.8 Liebert XDV—Vertical, Above-Cabinet Cooling ModuleThe Liebert XDV cooling system is designed to be attached to the top of a com
System Description91.9 Liebert XDC—Refrigerant ChillerThe Liebert XDC is an indoor chiller that connects directly to the Liebert XD cooling modules an
System Description101.10 Liebert XDP—Pumping UnitThe Liebert XDP isolates the building’s chilled water circuit from the pumped refrigerant circuit. Th
System Description111.11 Liebert XD PipingLiebert XD Piping is prefabricated distribution piping that is installed in anticipation of a growing sys-te
Starting a New Equipment Cooling Project122.0 STARTING A NEW EQUIPMENT COOLING PROJECT2.1 Determining Cooling Equipment Needs1. Is adequate space avai
Starting a New Equipment Cooling Project132.2 Implementing a Hot-Aisle/Cold Aisle DesignA best practice is to place equipment racks in alternating row
Designing a Liebert XD Solution143.0 DESIGNING A LIEBERT XD SOLUTIONLiebert XD systems are intended for use with precision air conditioning equipment,
Designing a Liebert XD Solution15ExampleFor example, a 2000 ft2 server room with has 30 racks, 15 racks produce 20kW of heat each and 15 produce 10kW
Designing a Liebert XD Solution16either Liebert XDH20, Liebert XDO20 or Liebert XDR20. The racks with 10kW per rack could be cooled using the Liebert
Designing a Liebert XD Solution17Different types of Liebert XD cooling modules may be connected to the same Liebert XDP or Liebert XDC as long as the
Designing a Liebert XD Solution183.4.2 System Connection ConfigurationIf possible, connect the Liebert XD modules to Liebert XDPs or Liebert XDCs in a
Designing a Liebert XD Solution193.6 Liebert XDCF PlacementThe Liebert XDCF is a self-contained module designed to cool Egenera’s BladeFrame EX cabine
Designing a Liebert XD Solution203.7 Liebert XDH PlacementThe free-standing Liebert XDH cooling unit is best placed among the equipment cabinets in a
Designing a Liebert XD Solution213.8 Liebert XDO Placement3.8.1 Determining Spacing of Liebert XDOs in an AisleLiebert XDO units should be placed in r
iTABLE OF CONTENTS1.0 SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.1
Designing a Liebert XD Solution223.8.2 Determining Vertical Placement of Liebert XDOs Above the Cold AisleIn the maximum density configuration, Emerso
Designing a Liebert XD Solution233.9 Liebert XDR Unit PlacementThe Liebert XDR does not require a hot aisle/cold aisle arrangement for effective and e
Designing a Liebert XD Solution243.10 Liebert XDV Unit PlacementLiebert XDV units should be placed on top of the cabinets that generate the greatest a
Designing a Liebert XD Solution253.11 Liebert XDP/Liebert XDC PlacementThe Liebert XDP/Liebert XDC may be placed in the critical space or in an adjace
Designing a Liebert XD Solution263.12 Examples of Expansion and Interlaced Connection of Liebert XD Cooling ModulesFigure 21 Liebert XDV units mounted
Designing a Liebert XD Solution27Figure 23 Liebert XDV units mounted on racks emitting 8kW of heat top viewFigure 24 Liebert XDV units mounted on rack
Designing a Liebert XD Solution28Figure 25 Multiple Liebert XD modules in an interlaced systemInstalling the Liebert XDR in a hot aisle/cold aisle con
Designing a Liebert XD Solution293.13 Liebert XD Piping System DesignAll piping must be ASTM (American Society for Testing and Materials) Type “ACR” c
Designing a Liebert XD Solution30For additional information about piping connections, see the unit’s user manual: Liebert XDP, 16644; Liebert XDC, SL-
Designing a Liebert XD Solution313.15 Bypass Flow ControllersTo ensure the XDP/XDC pumps operate within the optimum range, some installations require
ii3.19 Determining Refrigerant Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.19.1 Liebert X
Designing a Liebert XD Solution32Figure 31 Bypass flow controller pipingFilter Dryer AssemblyLiebert XD CoolingModule #1Liebert XD CoolingModule #2Coo
Designing a Liebert XD Solution33Figure 32 Hard-pipe connection diagram for Liebert cooling modules Refer to Table 8 for details.Rear of Liebert XD Co
Designing a Liebert XD Solution343.16 Piping Installation Method Prefabricated HeadersThe assembly and connection means used for piping in the Liebert
Designing a Liebert XD Solution35Figure 34 Four-port prefabricated piping for Liebert XD cooling modulesTable 11 Four-port prefabricated piping legend
Designing a Liebert XD Solution36Figure 35 Five-port prefabricated piping for Liebert XD cooling modulesTable 12 Five-port prefabricated piping legend
Designing a Liebert XD Solution37Figure 36 Ten-port prefabricated piping for Liebert XD cooling modulesTable 13 Ten-port prefabricated piping legendBr
Designing a Liebert XD Solution383.17 Liebert XD Flex Pipe KitLiebert XD Flex Pipe kits are available in lengths of 4, 6, 8 and 10 feet (1.2, 1.8,2.4
Designing a Liebert XD Solution393.18 Liebert XD RefrigerantThe refrigerant used in the Liebert XD system is HFC-134a (1,1,1,2-tetrafluoroethane), mad
Designing a Liebert XD Solution40Table 15 System R-134a charge for a Liebert XDP/Liebert XDC with any modelLiebert XDH/Liebert XDO/Liebert XDV/Liebert
Designing a Liebert XD Solution413.19.2 Calculating Refrigerant R134a Charge—ExampleUsing Tables 15, 16, 17 and 18, calculate the refrigerant charge o
iiiFIGURESFigure 1 Liebert XDP generic piping layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Designing a Liebert XD Solution42Figure 37 Additional oil requirements for refrigerant chargeTo calculate the oil required, use the following formula:
Designing a Liebert XD Solution433.20 Chilled Water PipingThe Liebert XDP is offered only with a two-way chilled water control valve. Some application
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV444.0 LIEBERT XD COOLING MODULES—LIEBERT XDCF, LIEBERT X
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV454.2 Liebert XDCF Mechanical ConsiderationsThe Liebert
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV464.3 Liebert XDCF Installation ConsiderationsNo cutting
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV474.4.1 Header SystemThe Liebert XDCF module system requ
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV48• Tie-Down Bracket—An optional tie-down bracket may be
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV494.7 Liebert XDO Standard Features• Micro Channel Heat
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV50Figure 44 Dimensional data—Liebert XDO hard-piped unit
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV51Figure 46 Liebert XDO internal mounting locationDPN000
ivFigure 49 Liebert XDR dimensions with hard-piped connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Figure 50 Liebert
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV52Figure 47 Top and front electrical access points and t
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV534.9 Liebert XDR Standard Features• Micro-channel Heat
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV54Table 26 Cooling capacity, 1500-3000 cfm air flowDegre
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV55Figure 49 Liebert XDR dimensions with hard-piped conne
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV56Figure 50 Liebert XDR dimensions with one-shot connect
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV57Figure 51 Liebert XDR dimensions with removable connec
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV584.12 Liebert XDV Standard Features• Micro Channel Heat
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV59Figure 52 Liebert XDV dimensions Table 27 Dimensional
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV60Figure 53 Liebert XDV dimensions with one-shot connect
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV61Figure 55 Suspending single Liebert XDV from the roof
vTable 12 Five-port prefabricated piping legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Tabl
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV62Figure 56 Alternative mounting methods—mounting multip
Liebert XDC and Liebert XDP635.0 LIEBERT XDC AND LIEBERT XDP5.1 Liebert XDC Standard Features• Compressors—Scroll with a suction gas cooled motor, vib
Liebert XDC and Liebert XDP64Figure 58 Liebert XDC piping locationsTable 29 Liebert XD Chiller piping connection sizesAir Cooled Models Piping Outlet
Liebert XDC and Liebert XDP65Figure 59 Positioning a water/glycol Liebert XDC for placement on a floor standTable 30 Liebert XDC Water/Glycol Piping C
Liebert XDC and Liebert XDP66Figure 60 Piping locations—floor stand and valve assemblyShaded areas indicate a recommendedclearance of 36" (915mm)
Liebert XDC and Liebert XDP67Figure 61 Front view of Liebert XDC and electrical enclosuresFigure 62 Liebert XDC electrical enclosure knockout location
Liebert XDC and Liebert XDP68Figure 63 Liebert XDC high-voltage connections—primary disconnect switch, 60Hz modelsFigure 64 Liebert XDC high-voltage c
Liebert XDC and Liebert XDP69Figure 65 Liebert XDC high-voltage connections—secondary disconnect switch, 60Hz modelsFigure 66 Liebert XDC high-voltage
Liebert XDC and Liebert XDP70Figure 67 Liebert XDC heat rejection electrical connection pointsFigure 68 Liebert XDC electrical enclosure knockout loca
Liebert XDC and Liebert XDP71Figure 69 Liebert XDC Extra Low Voltage field-connection pointsControl wiring must be Class 2 and installedin accordance
vi
Liebert XDC and Liebert XDP725.2 Liebert XDP Standard Features• Heat Exchanger—Brazed plate design with interwoven circuiting constructed of stainless
Liebert XDC and Liebert XDP73Figure 71 Liebert XDP piping access points and external featuresTable 32 Unit piping outlet connection sizes, inches, OD
Liebert XDC and Liebert XDP74Figure 72 Front view of Liebert XDP and electrical enclosureFigure 73 Liebert XDP electrical enclosure knockout location
Liebert XDC and Liebert XDP75Figure 74 Liebert XDP electrical enclosure knockout locations for field wiringFigure 75 Liebert XDP high-voltage connecti
Liebert XDC and Liebert XDP76Figure 76 Liebert XDP high-voltage connections—50HzBusbarCustomer PowerConnectionPump CircuitBreakersPump ContactorsGroun
Specifications and Model Number Nomenclature776.0 SPECIFICATIONS AND MODEL NUMBER NOMENCLATUREFigure 77 Liebert XDCF model number nomenclatureTable 33
Specifications and Model Number Nomenclature78Table 34 Liebert XDH20 specificationsModelsXDH20BK1XDH20SK1(60Hz)XDH20BS1XDH20SS1(50/60Hz)Cooling Capaci
Specifications and Model Number Nomenclature79Table 35 Liebert XDH32 specificationsModelsXDH32BK1XDH32SK1(60Hz)XDH32BS1XDH32SS1(50/60Hz)Cooling Capaci
Specifications and Model Number Nomenclature80Figure 78 Liebert XDH model number nomenclatureXD H 32 B K —Horizontal row coolerK = 120V-1ph-60HzS = 20
Specifications and Model Number Nomenclature81Table 36 Liebert XDO16 specificationsModelsXDO16BK1XDO16SK1(60Hz)XDO16BS1XDO16SS1(60Hz)XDO16BS1XDO16SS1(
System Description11.0 SYSTEM DESCRIPTIONThe Liebert XD™ family of cooling units delivers efficient, sensible cooling to high-heat environ-ments. Lieb
Specifications and Model Number Nomenclature82Table 37 Liebert XDO20 specificationsModelsXDO20BK1XDO20SK1XDO20BS1XDO20SS160Hz 60Hz 50HzCooling Capacit
Specifications and Model Number Nomenclature83Figure 79 Liebert XDO model number nomenclatureTable 38 Options for Liebert XDO20 and Liebert XDO16Optio
Specifications and Model Number Nomenclature84Figure 80 Liebert XDR model number nomenclatureTable 40 Liebert XDR20 specificationsModelsXDR20B1- *XDR2
Specifications and Model Number Nomenclature85Table 42 Liebert XDV8 specificationsModelsXDV8BK1XDV8SK1XDV8BT1XDV8ST1XDV8BS1XDV8SS160 Hz 60 Hz 50 Hz 50
Specifications and Model Number Nomenclature86Table 43 Liebert XDV10 specificationsModelsXDV10BK1XDV10SK1XDV10BT1XDV10ST1XDV10BS1XDV10SS160 Hz 60 Hz 5
Specifications and Model Number Nomenclature87Figure 81 Liebert XDV model number nomenclatureTable 44 Liebert XDV dimensions—domestic and exportModelS
Specifications and Model Number Nomenclature88Table 45 Liebert XDC160 specificationsModelsXDC160 Air XDC160 Water / GlycolXDC160AA XDC160AM189192G3 (9
Specifications and Model Number Nomenclature89Table 46 Floor stand specifications—water-cooled Liebert XDCXDC160 Water Floor Stand - 60Hz189192G518919
Specifications and Model Number Nomenclature90Figure 82 Liebert XDC model number nomenclatureTable 48 Floor stand specifications—Liebert XDC with 40%
Specifications and Model Number Nomenclature91Table 49 Liebert XDP160 specificationsModelsXDP160RC--3 XDP160RA--3 XDP160RM--3Cooling Capacity, Nominal
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